System Information Rate Matching for Synchronization Signals
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Solution Overview
Problem
There is a need for improved techniques in wireless communication systems, particularly in LTE and NR, to enhance system information rate matching, especially for synchronization signals like PSS, SSS, and PBCH, to support increasing mobile broadband access demands and reduce interference.
Innovation Solution
Implementing rate matching rules for synchronization signals, including PSS, SSS, and PBCH, by utilizing location encoding and beamforming to optimize resource allocation and minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rate matching is performed for system information to support synchronization signals, then system information transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by modifying the rate matching process to account for synchronization signal resources. The base station configures rate matching parameters that indicate which resources are occupied by synchronization signals, and the UE adjusts its rate matching accordingly. This allows efficient system information transmission while managing device complexity through standardized parameter configuration.
Solution Approach 2:
The patent segments the available resources into different categories: resources occupied by synchronization signals and resources available for system information. This segmentation is achieved through configuration parameters that divide the time-frequency grid, allowing the UE to perform rate matching only on the appropriate segments, thereby improving efficiency without excessive complexity.
2Object-affected harmful factors
If rate matching rules are implemented for synchronization signals, then interference is reduced, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by having the base station pre-configure rate matching parameters that indicate which resources will be occupied by synchronization signals. This allows the UE to proactively avoid these resources during system information reception, reducing interference before it occurs while keeping device complexity manageable through standardized configuration procedures.
3Productivity
If resources are allocated for both system information and synchronization signals, then system information transmission efficiency is improved, but resource utilization deteriorates
Solution Approach 1:
The patent applies local quality by allowing different parts of the time-frequency resource grid to have different properties. Resources designated for synchronization signals have the property of being excluded from system information rate matching, while other resources maintain normal utilization. This local differentiation improves system information transmission efficiency without excessively impacting overall resource utilization.
Data Source
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AI summary
Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a communication that includes system information, wherein the system information includes information associated with identifying a set of resources that carry synchronization communications, wherein the set of resources is included in a set of potential resources on which synchronization communications can be carried; and perform, based at least in part on a rate matching rule, de-rate matching associated with receiving the system information, wherein the rate matching rule is a rule associated with performing de-rate matching with respect to the set of potential resources. Numerous other aspects are provided.